*{
    padding: 0;
    margin: 0;
    list-style: none;
    box-sizing: border-box;
}
.kstabbox{
     
    display: flex;
}

.kstabboxleft{
    width: 40vw;
    height: 90vh;
    overflow-y: auto;
    border-right: 0.5px solid #F0F0F0; 
}
.kstabboxleft::-webkit-scrollbar {
    width: 0;
}
.kstabboxleft div{
    width: 100%;
    height: 5%;
    background: #FBFBFB;
    color: #999999;
    display: flex;
    align-items: center;
    border: 0.5px solid #ccc;
    border-bottom: none;
}
.kstabboxleft .kstabboxleftactive{
    color: #000000;
    font-weight: bold;
    background: #fff;
}
.kstabboxright{
    width: 60vw;
    height: 93%;
     
}
.kstabboxright>div{
    width: 100%;
    height: 5%;
    display: flex;
    align-items: center;
    margin-left: 5px;
}